This removes previous special cases for each floating-point type in favour of a
shared codepath.

llvm-svn: 172189

ARM Cost Model:  We need to detect the max bitwidth of types in the loop in order to select the max vectorization factor.
We don't have a detailed analysis on which values are vectorized and which stay scalars in the vectorized loop so we use
another method. We look at reduction variables, loads and stores, which are the only ways to get information in and out
of loop iterations. If the data types are extended and truncated then the cost model will catch the cost of the vector
zext/sext/trunc operations.

llvm-svn: 172178

Revert r172153, "llvm/lib/MC/MCParser/AsmParser.cpp: [ms-inline-asm] Fix a couple of undefined behaviors. Operand->needAddressOf() is not initialized at !Operand->isReg()."

It has been redundant since r172157.

llvm-svn: 172166

Right now, only OS X has a way to determine the column width of a string
(PR14910). Until we have a good way to deal with this, we just won't
print carets, source ranges, or fixits for SMDiagnostic if the source line
has multibyte characters in it.

llvm-svn: 172164

llvm-svn: 172159

llvm-svn: 172157

llvm/lib/MC/MCParser/AsmParser.cpp: [ms-inline-asm] Fix a couple of undefined behaviors. Operand->needAddressOf() is not initialized at !Operand->isReg().

llvm-svn: 172153

llvm-svn: 172151

llvm-svn: 172149

r172121.

llvm-svn: 172148

llvm-svn: 172146

The root cause is mistakenly taking for granted that 
    "dyn_cast<Instruction>(a-Value)"
return a non-NULL instruction.

llvm-svn: 172145

Value's current type. The casting is trivial even for aggregate type.

llvm-svn: 172143

switch. Committed with Jim's and Chris's approval.

llvm-svn: 172136

This fixes va_start/va_copy of a va_list field which happens to not
be laid out at a 16-byte boundary.

Differential Revision: http://llvm-reviews.chandlerc.com/D276

llvm-svn: 172128

llvm-svn: 172124

llvm-svn: 172123

Part of rdar://12991541

llvm-svn: 172121

Teach InstCombine to hoist FABS and FNEG through FPTRUNC instructions.  The application of these operations commutes with the truncation, so we should prefer to do them in the smallest size we can, to save register space, use smaller constant pool entries, etc.

llvm-svn: 172117

Like Clang's FixItHint, SMFixIt represents an insertion, replacement, or
removal of source text. One or more fix-its can be emitted as part of
a diagnostic, and will be printed below the source range line to show the
user how they can fix their code.

Currently, the only client of SMFixIt is clang-tblgen; thus, the tests for
this behavior live in clang/test/TableGen/tg-fixits.td. If/when SMFixIt is
adopted within LLVM itself, those tests should be moved to the LLVM suite.

llvm-svn: 172086

def foo : bar;
          ~~~

This allows us to produce more precise diagnostics about a certain
superclass, and even provide fixits.

llvm-svn: 172085

llvm-svn: 172084

When calling hasProperty() on an instruction inside a bundle, it should
always behave as if IgnoreBundle was passed, and just return properties
for the current instruction.

Only attempt to aggregate bundle properties whan asked about the bundle
header.

The assertion fires on existing ARM test cases without this fix.

llvm-svn: 172082

LoopVectorizer: Fix a bug in the vectorization of BinaryOperators. The BinaryOperator can be folded to an Undef, and we don't want to set NSW flags to undef vals.

PR14878

llvm-svn: 172079

llvm-svn: 172054

llvm-svn: 172051

llvm-svn: 172034

gone, check for the actual file we care about.

llvm-svn: 172033

failing to create the unique file because the path doesn't exist,
don't fail if someone else manages to create the path before we do.

llvm-svn: 172032

This function can still work without a BUNDLE header instruction.

llvm-svn: 172029

requirement when creating stack objects in MachineFrameInfo.

Add CreateStackObjectWithMinAlign to throw error when the minimal alignment
can't be achieved and to clamp the alignment when the preferred alignment
can't be achieved. Same is true for CreateVariableSizedObject.
Will not emit error in CreateSpillStackObject or CreateStackObject.

As long as callers of CreateStackObject do not assume the object will be
aligned at the requested alignment, we should not have miscompile since
later optimizations which look at the object's alignment will have the correct
information.

rdar://12713765

llvm-svn: 172027

llvm-svn: 172026

llvm-svn: 172022

llvm-svn: 172020

llvm-svn: 172015

llvm-svn: 172011

ARM Cost model: Use the size of vector registers and widest vectorizable instruction to determine the max vectorization factor.

llvm-svn: 172010

It cahced XOR's operands before calling visitXOR() but failed to update the
operands when visitXOR changed the XOR node.

rdar://12968664

llvm-svn: 171999

Move the internal PrintStackTrace function that is used for llvm::sys::PrintStackTraceOnErrorSignal(),
into a new function llvm::sys::PrintStackTrace, so that it's available to clients for logging purposes.

llvm-svn: 171989

[ObjCARC Debug Messages] This is a squashed commit of 3x debug message commits ala echristo's suggestion.

1. Added debug messages when in OptimizeIndividualCalls we move calls into predecessors and then erase the original call.
2. Added debug messages when in the process of moving calls in ObjCARCOpt::MoveCalls we create new RR and delete old RR.
3. Added a debug message when we visit a specific retain instruction in ObjCARCOpt::PerformCodePlacement.

llvm-svn: 171988